Improvement in methods of attaching handles to crosscut-saws



rvr w* f UNITED i STATES PATENT OEEICE.

CHARLES DISSTON, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT lN METHODS' 0l: ATTACHING HANDLES TO CROSSCUT-SAWS.

Specification forming part of Letters Patent No. 45.980, dated January:24, 1865.

To a/ZZ whom it may concern.'

Be it known that I, v(JHARLES DIssTON, of Philadelphia, Pennsylvania,have invent-ed an Improved Handle for Crosscut-Saws; and I do herebydeclare the following to be a full, clear, and exact description of thesame, reference being had to the accompanying drawings, and to theletters of reference marked thereon.

My invention consists ot' a handle of the peculiar construction fullydescribed hereafter, to be used in connection with a crosscut-saw, myimprovement having been designed for the purpose of securing the handleY more securely to the saw than the usual handles can be; also for thepurpose of readily adapting the handle to saws ot' different widths.

In order to enable others skilled inthe art to make and use myinvention, I will now proceed to describe its construction andoperation.

On reference to the accompanying drawings, which form a part of thisspecification, Figurel is a side view of my improved handle forcrosscut-saws, showing the same attached to the. end of a saw Fig. 2, asectional view 5 Fig. 3, an end view, looking in the direction of thearrow, Fig. 1 and Fig. 4, a sectional plan on the line l` 2, Fig. 1.

Similar letters refer to similar parts throughout the several views.

A is a wooden handle, which is reduced in size near one end so as toform a shoulder at @the reduced portion of the handle being dividedlongitudinally by a slot or opening, a.. A metal ferrule, C, extendsround the handle near the shoulder @aand to this i'errule arepermanently secured two metal strips, b b, the latter extending alongthe handle to nearly the end of the same, where a pin, c, passes throughboth strips, through the handle, and through a plate, D, which turns onthe pin in the opening a, the pin passing through the said plate at apoint nearer to one side of the same than to the other, and on each edgeof the plate is a small projection, e, for a pur-V pose describedhereinafter.

A tapering key, F, passes through the opening ct, and bears against thet'errule C, the opening being enlarged at this point for the receptionof the key, in the lower edge of which is a longitudinal recess, y, asbest seen in Figs. 3 and 4. l

Near the end of the saw X, to which the handle has to be attached, areone or more recesses, t', as seen in Fig. 2.

When the handle has to be applied to the saw, the key F is removed andthe end of the saw is introduced into the opening c, so that theprojection e on the edge of the plate D shall enter one of the recessesin the edge of the saw. The key Fis then introduced into the enlargedportion of the opening between the saw and the ferrule, and driven inthe direction of its arrow, Fig. 2, until the handle is firmly securedto the end of the saw.

It will be seen that whatever may be the inclination of that edge ofthesaw which is next to the plate D, the latter will accommodate itselfto the same, and that the projection e will prevent the saw from beingwithdrawn from the handle. It will also be seen that the handle is notsubjected to any lateral strain during the operation of the saw, owingto the. slot y in the wedge F, which receives the edge of the saw andretains the latter firmly in its position, so that it cannot bear hardagainst the sides of the opening c.

As bot-h the ferrule G and plate D are connected to the strips b, thelatter sustain the entire strain produced by wedging the end of the sawbetween the ferrule and plate, and the wooden handle is much less liableto be broken than in cases where the saw is secured directly to the sameby bolts or other appliances which pass through the handle, and therebyweaken it.

The handle may be readily adapted to saws of greater or less width bymerely turning the plate D, so as to present to the edge of theA sawthat edge of the plate which is nearest to or farthest from the pin c,as shown in Fig. 2.

I claim as my invention and desire to secure by Letters Patentt l. Thehandle A, its ferrule C, and strips b, the key F, and seltladjustingplate D, the whole being constructed and arranged for attachment to theend of the saw substantially as described.

2. The self-adjusting plate D, hung to the strips b, and havingprojections e e, adapted to notches in the edge of the saw, all as setforth.

In testimony whereof I have signed my name to this specication in thepresence ot' two subscribing witnesses.

Vitnesses: CHARLES DISSTON.

CHARLES E. FOSTER, CHAs. B. PRICE.

